Bicycle-pump lock



A. P. LUNDIN.

BICYCLE PUMP LOCK.

APPLICATION FILED AUG-15,1919.

Patented Apr. 27, 1920.

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BICYCLE PUMP LOCK.

APPLlCATlON FILED Aue.15. 1919.

Patented Apr. 27, 1920.

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ADOLF PER LUNDIN, OF JOI-IANNESBURG, TRANSVAAL, SOUTH AFRICA.

BICYCLE-PUMP LOCK.

Specification of Letterslatent.

Patented Apr. 27,1920.

Application filed August 15, 1919. Serial No. 317,745.

To all whom it may concern:

Be it known that I, AnoLr Pun LUNDIN, a citizen of Transvaal, South Africa, residing in Bez Valley, Johannesburg, Transvaal, South Africa, have invented a ne\ Y and Improved Bicycle-Pump Look, of which the following is a full, clear, and exact description.

This invention relates to a bicycle lock, and more particularly to a lock for securing a bicycle pump to the frameof said cycle.

A particular object of the invention is to provide a locking means permanently secured to one frame bar of the bicycle and positively locking the pump thereon to pre vent unscrupulous removal.

It is a broad purpose of my invention to provide a form of bicycle pump lock which will positively engage the pump, and which will automatically move out of engagement with said pump when the lock is opened by a key.

Finally, it is a purpose to provide the design of an effective form of bicycle pump lock which will be comparatively simple in construction inexpensive to manufacture, and unlikely to get out of working order.

With the above and other objects in view the invention has relation to a certain combination and arrangement of parts, an eX- ample of which is described in the following specification, pointed out in v the appended claims, and illustrated in the accompanying drawings, wherein:

Figure 1 shows a bicycle with a pump locked thereon.

Fig. 2 shows a detailed side elevational view of a fragment of frame with the pump attached thereto; while Fig. 3 shows a front view of Fig. 2.

Fig. l shows a view taken in the same direction as Fig. 3, but with some parts of the device shown in sectional view.

Fig. 5 is a sectional view taken upon the line 55 of Fig. 2; and Fig. 6 is a sectional view taken upon the line 66 of Fig. 5.

Fig. 7 shows a sectional view taken upon the line 7-7 of Fig. 6; and Fig. 8 shows a sectional view taken upon the line 8-8 of Fig. 5.

Fig. 9 illustrates a sectional view taken upon the line 9-9 of Fig. 2.

Fig. 10 shows the locking ends of a clamp band employed in this invention.

Fig. 11 shows a modified form of the locking device, and Fig. 12 shows a front view of Fig. 11.

Fig. 13 shows a fragmentary view of Fig. 12, and Fig. 14 shows a view taken upon the line1 l14 of Fig. 11.

Referring nowmore in particular to the drawings, wherein the same parts throughout the several views are designated by identical reference characters, B represents the frame bar of the bicycle upon which a clamp and locking means may be installed.

A clamp band comprising members 2 and 8 is placed around the bicycle bar and hooked together by the locking ends illustrated in Fig. lO'by engaging the interlocking hooks 4i and 5. The clamp band is brought together as shown in Fig. 9 with a bolt 6, interposed therebetween. This bolt is provided with a serrated head 7 and serrated washer 8 which engage the clamp members 2 and 3. A nut 9 tightens the clamping bolt and serrrated members against the clamp members and securely engages said clamp to the bicycle bar B.

The clamp members or sections are shaped and formed into a pump receptacle opening as designated by 10 and 11. The forward end 11 of the clamp band is drawn around the look as designated by the numeral 12 and lapped back and riveted upon said member 11. The lock 13 is, therefore, fixed to the band 11.

The pump holding band 10 is wrapped around a cylindrical guide or receptacle and riveted to the band as designated by the numeral 1 1. Thus the cylindrical guide or receptacle 15 and lock 13 are held in a spaced relation, and firmly attached to the clamp band 2--3.

The bicycle pump C is confined between the pump holding bands 10 and 11 and locked in position as later seen.

A lock yoke comprising parallel members 17 and 18 is provided with an integral boss 19 with a bore therein and fitted to a screw 1 per end of the pump C. A bicycle pump is 105 usually made with a shoulder 12 which is a part of the pump handle or pump barrel, and this shoulder will be placed in en agement with the pump holdingband, an the retaining rod and locking pin engage with 110 the pump to securely hold the shoulder E against the bands to prevent removal thereof.

One member or leg '17 of the lock yoke is rotatably confined within the cylindrical guide 15. This cylindrical guide is internally bored and provided with a bushing 28 longitudinally bored to receive the lower end of the yoke leg 17. The bushing is provided with an enlarged bore in the upper portion so as to retain a compression spring 24. This compression spring is confined upon the leg 17 within the enlarged bore of the bushing with one end of the spring en-. gaging a pin 25 carried within the leg and the upper end engaging the top of the cylindrical guide 15. This compression spring normally acts to keep the leg 17 in downwardly limited position. provided with a guide slot 26 cut vertically therein and connecting with another slot 27 formed approximately at right angles with the slot 26. The pin 25 is slidably confined withinthe slot 2627, and normally seated, under the action of the spring, as shown in Fig. 8. The leg 18 of the look yoke is adapted to engage in locked relation with the lock 18. The lower end of the leg 18 has formed therein lock slots 29 which engage locking levers of the lock 18. The lock 18 is provided with an aperture 80 in the upper wall thereof which connects with a slot 81. The aperture 80 receives the lower end of the leg 18 and securely looks it in position.

The lock 18 comprises a shell 82 slidably retaining therein a block 88. A key receptacle'84 is fitted in the lock casing. A dog 85 is pivoted in the lock casing. A key is introduced into the key receptacle 84 to displace the dog 85 which permits the slide block 88 to be moved upwardly. Simultaneous with this action, locking levers disengage the slots 29, thus ermitting the leg 18 to undergo upward cisplacement. The dog 88 under the lifting movement of the key expels theleg 18 from the casing. The yoke will then be pivoted about the leg 17 which will disengage the part 18 from the look. This disconnects the look from the cylindrical guide and permits the pump bands 10 and 11 to be slightly expanded so as to allow removal of the pump.

The pump may be placed back in the locking bands, and the locking yoke swung into position until the leg 18 registers with the aperture 80. The automatic action of the spring 24 will then thrust the locking yoke into fixed engagement with the lock 18.

Figs. 11, 12, 18 and 14 illustrate a modified design of the bicycle look. This design comprises means for employing an ordinary paddock in connection with the pump securing means where it is preferable to dispense with the more expenslve form of lock 18.

The bushing is and a hole in the fork will register. A pad- 7 lock 48 will then be snapped in position securely holding the pump retaining rod in downward engagementwith the pump. 8

This form'of construction adequately locks the pump upon a bicycle frame.

In case breakage of the lock parts occurs, it is possible for the owner of the bicycle to reequip the bicycle lock with a lock 18, or reequip with a pad lock 43. In case he desires to reequip the lock device with the pad lock, it will only be necessary to remove the look yoke 17l8 and substitute therefor the look yoke 40 fitted with the end 41 provided with a hole through which the shank of a pad lock may be inserted, and also add the part-11 to the device. I

This form of bicycle lock is simple in its application to a bicycle frame and provides positive security against unscrupulous removal ofthe pump from the bicycle.

Having thus described my invention, what I tors Patent is: V

1. A pump lock for bicycles comprising, a clamp band to hold a bicycle pump and adapted to be fixed on the frame, a lock hav ing one end of the clamp band fixed thereto, a cylindrical guide fixed to the other end of the clamp band, said guide having a bayonet slot, a lock yoke pivoted in the cylindrical guide and adapted to catch in the look, a pin on the look yoke confined in the bayonet slot, a spring on the look yoke to restrain it normally downward, and saidbayonet slot functioning to hold the look yoke upwardly against the pressure of the spring to hold iaiil look yoke out ofengagement with the 2. A pump lock to hold a bicycle pump comprising, aclamp capable of being fixed to a bicycle frame, a lock fixed to the clamp, a cylindrical casing fixed to the clamp, a bushing in the cylindrical casing, a clamp yoke swingingly confined in the bushing, a catch pin made on the look yoke, aspring confined on the lock yoke to constrain it normally downward, said bushing and cylindrical guide having a bayonet slot in which the catch pin is confined to hold the lock yoke in disengaged position from the lock.

8. A. pump lock for bicycles comprising, a clamp band to hold a bicycle pump and adapted to be fixed on the frame, a lock having one end of the clamp band fixed com risin a clam ca able thereto, a cylindrical guide fixed to the other end of the clamp band, said guide having a bayonet slot, a lock yoke pivoted in the cylindrical guide and adapted to catch in the lock, a pin on the look yoke confined in the bayonet slot, a spring on the lock oke to re strain it normally downward, said bayonet slot functioning to hold the lock yoke upwardly against the pressure of the spring to hold said lock yoke out of engagement with the lock, and a pump retaining rod carried by the look yoke to fixedly hold a bicycle pump in the clamp band.

4. A pump lock to hold a bicycle pump of being'fixed to a bicycle frame, a lock fixed to the clamp, a cylindrical casing fixed to the clamp, a bushing in the cylindrical casing, a clamp yoke swingingly confined in the bushing, a catch pin made on the look yoke, a spring confined on the look yoke to constrain it normally downward, said bushing and cylindrical guide having a bayonet slot in which the catch pin is confined to hold the look yoke in disengaged position from the lock, and a retaining rod carried by the look yoke to look a bicycle pump in the aforesaidclamp.

ADOLF PER LUNDIN. 

